Ubuntu16.04 释放/boot目录空间

查看当前系统内核

$ uname -a
Linux linuxidc 4.13.0-32-generic #24-Ubuntu SMP Mon Feb 21 17:29:16 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

查看已安装的内核

$ dpkg --get-selections |grep linux-

删除所有 deinstall 结尾的, 以及未使用的generic结尾的

# deinstall
sudo apt-get purge linux-image-4.10.0-38-generic
sudo apt-get purge linux-image-4.10.0-40-generic
sudo apt-get purge linux-image-4.10.0-42-generic
sudo apt-get purge linux-image-4.13.0-26-generic
sudo apt-get purge linux-image-4.8.0-36-generic
sudo apt-get purge linux-image-extra-4.8.0-36-generic
sudo apt-get purge linux-image-extra-4.10.0-38-generic
sudo apt-get purge linux-image-extra-4.10.0-40-generic
sudo apt-get purge linux-image-extra-4.10.0-42-generic
sudo apt-get purge linux-image-extra-4.13.0-26-generic
# 未使用的 generic
sudo apt-get purge linux-image-extra-4.13.0-31-generic
sudo apt-get purge linux-image-4.13.0-31-generic
sudo apt-get purge linux-headers-4.13.0-31-generic